Sergeant at Arms
Yes, or some other, more or less (preferably less) arbitrary cut off points where you, as a player, can say you have accomplished your goal. Get a title; the warlord, champion, or something something.I don't know why they chose for the scope of the story to be this large. Imo it should've been a tutorial where you: Do the first tutorial recruitment and battle -> reach tier 1 clan -> get your family back -> get the Dragon Banner (maybe decrease the necessary number of Neretzes' Folly stories to 5) -> join a kingdom or an empire faction or form your own faction using the Dragon Banner -> Istiana/Arzagos is conspiring against you by preparing a massive army -> you are tasked with conquering a town & 2 castles or something while also delaying the building of a conspiracy army by doing the conspiracy quests -> you need to defeat a "giga" army of 1,5k troops or something (with the size depending on how you handled the conspiracy) commanded by Istiana or Arzagos that is coming to take the fiefs you took (this can also be a tutorial in siege defence) -> you beat them, capture Istiana/Arzagos, choose to either permanently imprison or execute them -> game congratulates you for beating the main "story", plays a cutscene, maybe gives a reward and the game continues as normal sandbox.
One thing that might also satisfy, at least some players, might be to provide the player with opportunites to create very rich towns. Aka stay in a corner and just build "tall".